Composite concrete/steel fireproof column
US4779395A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1986 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Aug 28, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C3/293
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fireproof construction element has a plurality of integrally interconnected and parallel profile beams each having a longitudinally extending outer flange defining an outer surface and a longitudinally extending web extending inwardly from the flange. The webs are each formed adjacent the flange with a row of at least generally longitudinally extending, elongated, and laterally throughgoing slots. The beams form a plurality of outwardly open channels laterally bounded by the flanges. Respective masses of concrete substantially fill the channels between the webs and inward of the flanges and have outer surfaces contiguous with the outer surfaces of the beam flanges. The slots can be provided in two rows with the slots of one row overlapping and staggered with the rows of the other row.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.